本文对有限非空子集是弱容许集的半群进行分类。
In this paper, we characterize the semigroups whose finite non empty subsets are weakly admitable.
在非紧的一般拓扑空间中证明了一个涉及容许集值映象的叠合定理。
A new coincidence theorem involving admissible set-valued mappings is proved in general noncompact topological Spaces.
第二章，利用广义r - KKM映射，在不具任何凸结构的一般拓扑空间中证明了一个新的关于容许集值映射的叠合定理。
In the second chapter, by using generalized R-KKM mappings, we obtain a new coincidence theorem for admissible set-valued mappings in topological Spaces without any convexity structure.
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